American Foundation for Continuing Education.

Exploring the universe / edited by Louise B. Young ; American Foundation for Continuing Education. - McGraw-Hill, [1963]. - xxviii,457 p. : ill. ; 26 cm. - American Foundation for Continuing Education. Publications. .

Includes bibliography.

62021787


Science.
Astronomy.

ასტრონომია კოსმოსის კვლევა

Q111 / .A5

524